Pith Number

pith:ZTSKTHLB

pith:2010:ZTSKTHLBHNDM2UA5BC3F52DAST

not attested not anchored not stored refs pending

Photometric characterization of the Galactic star cluster Trumpler 20

Edgardo Costa (Universidad de Chile), Giovanni Carraro (ESO Chile), Javier Ahumada (Observatorio de Cordoba)

arxiv:1007.4782 v1 · 2010-07-27 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTSKTHLBHNDM2UA5BC3F52DAST}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:06:09.643211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cce4a99d613b46cd501d08b65ee86094fcede375e75aab25c83e49dec0d7a6c1

Aliases

arxiv: 1007.4782 · arxiv_version: 1007.4782v1 · doi: 10.48550/arxiv.1007.4782 · pith_short_12: ZTSKTHLBHNDM · pith_short_16: ZTSKTHLBHNDM2UA5 · pith_short_8: ZTSKTHLB

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZTSKTHLBHNDM2UA5BC3F52DAST \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: cce4a99d613b46cd501d08b65ee86094fcede375e75aab25c83e49dec0d7a6c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76e337237de18cc369ad6774c02fc5f0390979fd2eaa5fc15295209fd3172a60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-07-27T18:24:47Z",
    "title_canon_sha256": "162e7141cb689eab49205bea01f6935aeaf7ab2896f71cc93690bd12b306f34e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.4782",
    "kind": "arxiv",
    "version": 1
  }
}